As if it were one of the known Russian dolls, a group of astronomers, led by researchers at the Instituto de Astrofísica de Canarias, (IAC) has found the first known case of three supernova remnants one inside the other. Using the programme BUBBLY, a method developed within the group for detecting huge expanding bubbles of gas in interstellar space, they were observing the galaxy M33 in our Local Group of galaxies and found example of a triple-bubble. The results, which were published yesterday in the journal Monthly Notices of the Royal Astronomical Society, help to understand the feedback phenomenon, a fundamental process of star formation and in the dissemination of metals produced in massive stars.

Academic social psychologists, who are over 99 percent liberal, can be reliably counted on to create surveys to affirm that liberals are more intelligent, less fearful of change, likely to have prettier children - especially in an election year.

In a report appearing in the July 12 issue of JAMA, an HIV/AIDS theme issue, Huldrych F. Gunthard, M.D., of University Hospital Zurich, Switzerland, and colleagues with the International Antiviral Society-USA panel, updated recommendations for the use of antiretroviral therapy in adults with established HIV infection, including when to start treatment, initial regimens, and changing regimens, along with recommendations for using antiretroviral drugs for preventing HIV among those at risk, including preexposure and postexposure prevention.

For the first time, researchers at the Wellcome Trust Sanger Institute and University of Leeds have proved that gene variants associated with red hair, pale skin and freckles are linked to a higher number of genetic mutations in skin cancers. The burden of mutations associated with these variants is comparable to an extra 21 years of sun exposure in people without this variant.

The research, published today in Nature Communications, showed that even a single copy of a red hair-associated MC1R gene variant increased the number of mutations in melanoma skin cancer; the most serious form of skin cancer. Many non-red haired people carry these common variants and the study shows that everyone needs to be careful about sun exposure.

A decade ago, ancient technology - using natural water to perform work - was the green goal. Today, dams are bad but now wind is back in fashion.

Trying to think green when buying a car? Whether your new fuel-efficient engine helps or hurts the warming planet depends on where you live and what you're putting in the tank.

New cars aim to deliver high performance with maximum fuel efficiency, making them easier on both the environment and the wallet. To do this, auto manufacturers are adopting a smaller, more fuel-efficient engine type, called gasoline direct-injection (GDI) -- between model years 2009 to 2015, the percentage of new vehicles sold with GDI engines jumped from five to 46 per cent.

Sarcoma is an aggressive form of cancer responsible for up to 20 percent of childhood cancers. Tumors often first appear in the extremities and the abdomen. Surgery is a primary treatment, but it often is combined with chemotherapy. This week in ACS Central Science, researchers propose a scheme to target chemotherapy medications specifically to sarcomas, leading to greater efficacy and fewer side effects.

The days of pork may be coming to a close. The International Agency for Research on Cancer recently declared bacon as carcinogenic as plutonium, and now a group of animal activists say pigs are more like people than we know.

23andMe has launched Genotyping Services for Research (GSR) so that researchers – no matter their level of genetics expertise – can infuse genetics into their studies.

It is commonly perceived that natural chemicals are safe while manmade substances may be harmful.  These perceptions, however, if not supported by scientific evidence, can result in risk perception gaps that can cause us to worry more than warranted by the evidence.